9. Let’s imagine that there are no more usability or findability problems. What will you do?

I’m optimistic that won’t happen in my lifetime. It’s important to embrace constraints. For instance, I’m grateful for the ambiguity of language, the subjectivity of organization, and the inevitability of death.

10. How many e-mails do you receive every day? What are they about?

Each day, I receive a ton of spam and a few interesting e-mails. My favorites are invitations to speak at conferences in faraway places, like the message from UX Russia that invited me to Moscow.

11. What does success mean to you? What do you sacrifice for achieving your goals?

I’m happiest when I’m on a quest. While I’m training for a marathon or writing a book, I’m better able to enjoy the quiet moments in life with friends and family. So, if I’m able to discover the right challenges at the right time, success doesn’t require sacrifice.

12. Do you have an idol? If yes, why?

No. But I am inspired by different people for different reasons. A few names that come to mind include Stewart Brand, Liz Danzico, Adam Greenfield, Brenda Laurel, and Bruce Sterling. Of course, our two daughters – Claire and Claudia – are my greatest sources of inspiration.

13. How many people are following you on twitter? How many people are you following? Why?

Today, I’m following 95 and followed by 5,200. This is an inversion of reality, because I typically listen more than I talk.